Thomas appears in the Maze with no memory and off-schedule and has to fight both the other guys there and the creepy Gladers. But what are they to make of the first girl to show up and her mysterious message?

Humans were forced into hiding in the city of Ember over 200 years ago, but the lights are starting to go out. It's up to Lina and Doon to figure out an ancient message and save the city. But should they stay?

Bo's accused of spreading a rash at school and sent to a work in a pizza factory in the tundra. His computer program, Bork, wants to free him, but can Bork be trusted? And does Bo want to go back to his highly-regulated old life?